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66px);display:block}@media (max-width:640px){.XRwuMa_header{padding-inline:10px}.XRwuMa_titleBlock small{display:none}.XRwuMa_titleRow{justify-content:flex-start}.XRwuMa_headerActions{flex-wrap:wrap}.XRwuMa_readingGoal{grid-template-columns:max-content minmax(54px,1fr) max-content;padding-inline:4px;font-size:.62rem}.XRwuMa_appearance{top:calc(var(--learning-topbar-height,66px) + 100px);grid-template-columns:1fr 1fr}.XRwuMa_notePanel{top:calc(var(--learning-topbar-height,66px) + 100px)}.XRwuMa_chapterNav{grid-template-columns:1fr 1.2fr 1fr}.XRwuMa_chapterNav button span{display:none}.XRwuMa_previewOverlay{padding:6px}.XRwuMa_previewDialog{border-radius:14px;height:94dvh}}@media (prefers-reduced-motion:reduce){.XRwuMa_header,.XRwuMa_sidebar,.XRwuMa_progressTrack span{transition:none}}.XRwuMa_networkBadge{color:#655747;background:#ffffffb8;border:1px solid #41332529;border-radius:999px;align-items:center;min-height:2rem;padding:0 .65rem;font-size:.76rem;font-weight:750;display:inline-flex}.XRwuMa_networkBadge[data-online=false]{color:#fff;background:#9a4117;border-color:#8b3a12}